Home / 2,927.55-4,039.86-1,668.45

Finding the Fourth Proportional to 2,927.55, 4,039.86 and 1,668.45

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Solution

The fourth proportional to 2,927.55, 4,039.86 and 1,668.45 is: 2,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.55 : 4,039.86 = 1,668.45 : x
  2. Step 2: Convert to fraction form
    2,927.55/4,039.86 = 1,668.45/x
  3. Step 3: Cross multiply
    2,927.55x = 4,039.86 × 1,668.45
  4. Step 4: Simplify right side
    2,927.55x = 6,740,304.42
  5. Step 5: Solve for x
    x = 6,740,304.42/2,927.55
  6. Step 6: Final answer
    x = 2,302.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.